The Effects of Emotional Exposure on State Anxiety

NCT03458702 | Completed Results

• 1 other identifier: 504055
• Study Type: interventional
• Target: 56
• Locations: 1 country
• Sites: 1

Brief Summary

A randomized repeated-measures crossover clinical trial was performed. Forty healthy, female college students completed a 30 min session of YogaFit and a time-matched seated rest condition on separate days. After each condition, participants viewed 30 min of emotional picture stimuli. State anxiety, heart rate and time-domain and frequency-domain measures of HRV were assessed baseline, post- condition, and post-exposure to emotional stimuli. Data were analysed using a condition x time (2 × 3) repeated-measures ANOVA.

Conditions

Generalized Anxiety Disorder

Keywords

autonomic function; emotion; heart rate variability

Outcome Measures

Primary Outcomes (5)

• STAI-Y1 Score Assessed at Baseline, Post-Condition and Post-Exposure

  State anxiety (STAI-Y1 score) at baseline ( 10 min prior to condition), post-condition (10 min after completion of YogaFit and Quiet Rest) and post-exposure (10 min after completion of 30 min of viewing emotional pictures from the International Affective Picture System (IAPS)) was measured by Spielberger's 20 question State Anxiety Questionnaire (STAI-YI). Scores range from 20-80, with higher scores indicative of increased state anxiety.

  10 min prior to condition, 10 min after completion of YogaFit and Quiet Rest,10 min after exposure to emotional stimuli

• Heart Rate Assessed at Baseline, During Condition, Post-Condition and Post-Exposure

  HR in beats per min assessed utilizing three electrodes and ProComp Infiniti Software at baseline (10 min prior to condition), during the condition (30 min of YogaFit and Quiet Rest), post-condition (10 min after YogaFit and Quiet Rest) and post-exposure (10 min after 30 min of viewing emotional pictures from the International Affective Picture System (IAPS)).

  10 min prior to condition, 30 min during condition, 10 min after completion of YogaFit and Quiet Rest,10 min after exposure to emotional stimuli

• Root Mean Square of Successive Differences (RMSSD) Assessed at Baseline, Post-Condition and Post-Exposure

  A measure of HRV, RMSSD, was assessed using three electrodes and CardioPro Infiniti-HRV Analysis Software at baseline (10 min prior to condition), post-condition (10 min after completion of YogaFit and Quiet Rest) and post-exposure (10 min after 30 min of viewing emotional pictures from the International Affective Picture System (IAPS)). HRV is associated with good health: increased RMSSD is thought to be beneficial.

  10 min prior to condition, 10 min after completion of YogaFit and Quiet Rest,10 min after exposure to emotional stimuli

• Low-frequency Band (LFNU) Assessed at Baseline, Post-Condition and Post-Exposure

  A measure of HRV, LFNU, assessed using three electrodes and CardioPro software at baseline (10 min prior to condition), post-condition (10 min after YogaFit and Quiet Rest) and post-exposure (10 min after 30 min of viewing emotional pictures from the International Affective Picture System (IAPS)). Low frequency (LF) is defined as 0.04-0.15 Hz (cycles per s) or a band ranging from 0.04 Hz to 0.15 Hz. High frequency (HF) is defined as a band ranging from 0.15-0.4 Hz (cycles per s). The most common frequency domain parameters include the powers in absolute and relative terms and the normalized power of the HF and LF bands or expressed as normalized units. The formula for n.u. for LF = LF in ms2/LF in ms2 + LF in ms2 HRV is associated with good health: increased LFNU is thought to be beneficial.

  10 min prior to condition, 10 min after completion of YogaFit and Quiet Rest,10 min after exposure to emotional stimuli

• High-frequency Band (HFNU) Assessed at Baseline, Post-Condition and Post-Exposure

  A measure of HRV, HFNU, assessed using three electrodes and CardioPro software at baseline (10 min prior to condition), post-condition (10 min after completion of YogaFit and Quiet Rest) and post-exposure (10 min after 30 min of viewing emotional pictures from the International Affective Picture System (IAPS)). High frequency (HF) is defined as a band ranging from 0.15-0.4 Hz (cycles per s). Low frequency (LF) is defined as 0.04-0.15 Hz (cycles per s) or a band ranging from 0.04 Hz to 0.15 Hz. The most common frequency domain parameters include the powers in absolute and relative terms and the normalized power of the HF and LF bands or expressed as normalized units. The formula for n.u. for HF = HF in ms2/LF in ms2 + LF in ms2. HRV is associated with good health: HFNU and LFNU are negatively correlated.

  10 min prior to condition, 10 min after completion of YogaFit and Quiet Rest,10 min after exposure to emotional stimuli

Secondary Outcomes (1)

• RPE Assessed Post-Condition

  Post-Condition, 10 min after completion of YogaFit and Quiet Rest

Study Arms (2)

YogaFit then Quiet Rest

EXPERIMENTAL

Participants participated in a 30 min YogaFit and then a session of 30 min of Quiet Rest on a separate day.

Behavioral: YogaFit; Behavioral: Quiet Rest

Quiet Rest then YogaFit

EXPERIMENTAL

Participants participated in a 30 min Quiet Rest session and then a session of 30 min of YogaFit on a separate day.

Behavioral: YogaFit; Behavioral: Quiet Rest

Interventions

YogaFit BEHAVIORAL

For YogaFit Vinyasa Flow (referred to as YogaFit in this manuscript)\], participants followed, via digital versatile disc, a standardized YogaFit format choreographed by an American Council of Exercise Certified and Registered Yoga Teacher (RYT). YogaFit was performed in the same laboratory setting and lasted 30 min. YogaFit is a westernized version of yoga that does not use Sanskrit terms (Shaw 2009). Breath was an integral part of every movement with specific breath rates for each phase of the session. The objective was to move the body with intention and purpose and be present in the body.

Quiet Rest then YogaFit; YogaFit then Quiet Rest

Quiet Rest BEHAVIORAL

Participants completed 30 min of quiet rest

Quiet Rest then YogaFit; YogaFit then Quiet Rest

Eligibility Criteria

• Age: 18 Years - 25 Years
• Sex: female
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)

You may qualify if:

• were between 18 and 25 years of age;
• were not suffering from any medical conditions that would influence the results or compromise safety during training-such as disorders effecting balance, or pregnancy;
• who were not taking antidepressant or anti-anxiety medication;
• were not clinically diagnosed with generalized anxiety disorder in the previous six months;
• were within the normal range (± 1 SD from the M) for female college students for trait anxiety according to Spielberger's Trait Anxiety Inventory \[(STAI-Y2); range: 40.40 ± 10.15\] (Spielberger 1983);
• were within normal (minimal to mild) levels of depression according to the Beck Depression Inventory \[(BDI); range: 0-18\] (Oliver and Simmons 1984);
• had a normal menstrual cycle (cycles occurring less than every 26 to 35 days and lasting less than 2 or more than 7 days);
• were not considered high-risk for dual energy x-ray absorptiometry (DEXA) based on a standardized questionnaire approved by the University Radiation Safety Committee; and
• were familiar with yoga or had not participated in at least 3 yoga practice sessions.

You may not qualify if:

• were less than 18 or more than 25 years of age;
• were suffering from any medical conditions that would influence the results or compromise safety during training-such as disorders effecting balance, or pregnancy;
• who were taking antidepressant or anti-anxiety medication;
• were clinically diagnosed with generalized anxiety disorder in the previous six months;
• were not within the normal range (± 1 SD from the M) for female college students for trait anxiety according to Spielberger's Trait Anxiety Inventory \[(STAI-Y2); range: 40.40 ± 10.15\];
• were not within normal (minimal to mild) levels of depression according to the Beck Depression Inventory \[(BDI); range: 0-18\];
• had an abnormal menstrual cycle (cycles occurring less than every 26 to 35 days and lasting less than 2 or more than 7 days);
• were considered high-risk for dual energy x-ray absorptiometry (DEXA) based on a standardized questionnaire approved by the University Radiation Safety Committee; and
• were not familiar with yoga or had not participated in at least 3 yoga practice sessions.

Sponsors & Collaborators

• Texas Tech University: lead

Study Sites (1)

Texas Tech University

Lubbock, Texas, 79409, United States

Location

Related Publications (1)

• Albracht-Schulte K, Robert-McComb J. The effects of yoga and quiet rest on subjective levels of anxiety and physiological correlates: a 2-way crossover randomized trial. BMC Complement Altern Med. 2018 Oct 17;18(1):280. doi: 10.1186/s12906-018-2343-1.

  PMID: 30333014 DERIVED

MeSH Terms

Conditions

Generalized Anxiety Disorder

Condition Hierarchy (Ancestors)

Anxiety Disorders; Mental Disorders

Results Point of Contact

• Title: Dr. Jacalyn McComb
• Organization: Texas Tech University

jacalyn.mccomb@ttu.edu

806-834-6306

Study Officials

• Jacalyn Robert-McComb, PhD

  Texas Tech University

  PRINCIPAL INVESTIGATOR

Publication Agreements

• PI is Sponsor Employee: No
• Restrictive Agreement: No

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: NONE
• Masking Details: No masking
• Purpose: TREATMENT
• Intervention Model: CROSSOVER
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Model Details: Methods: A randomized repeated-measures crossover clinical trial was performed. Forty healthy, female college students completed a 30 min session of YogaFit and a time-matched seated rest condition on separate days. After each condition, participants viewed 30 min of emotional picture stimuli. State anxiety, heart rate and time-domain and frequency-domain measures of HRV were assessed baseline, post- condition, and post-exposure to emotional stimuli.

Study Record Dates

• First Submitted: February 16, 2018
• First Posted: March 8, 2018
• Study Start: September 12, 2013
• Primary Completion: March 15, 2014
• Study Completion: May 1, 2014
• Last Updated: November 25, 2019
• Results First Posted: November 25, 2019

Record last verified: 2019-11

Data Sharing

• IPD Sharing: Will not share

Locations

US (1)